Advisory #292
July 10, 2020
CARB ENFORCEMENT ADVISORY
COMPETITION VEHICLES AND PERFORMANCE AFTERMARKET PARTS IN
CALIFORNIA:
SALES, SUPPLY, USE REQUIREMENTS AND PENALTIES
The purpose of this advisory is to help the public understand how the California Air
Resources Board (CARB) conducts violations enforcement with regard to competition
(racing) vehicles, performance aftermarket parts, and tampering pursuant to the
California Code of Regulations, Title 13 § 2220 et seq., California Code of Regulations,
Title 13 § 2470 et seq., California Vehicle Code §§ 27156 and 38391, and California
Health & Safety Code § 43151 et seq. To achieve that goal, this advisory provides a
general overview and description of these regulations. This advisory does not, and is
not intended to, cover all possible enforcement circumstances for these regulations;
CARB will make case-by-case enforcement determinations. A summary of this
advisory is as follows:
CARB enforces against any manufacturer, wholesaler, distributor, dealer,
installer, retailer and/or repair shop or facility if they offered for sale or sold an
uncertified vehicle, an illegally modified vehicle, or an illegal part, or installed an
illegal part on an emission-controlled
1
vehicle that is operated on a public
highway
2
.
CARB enforces against individual vehicle owners (consumers) that have violated
the law by tampering, modifying, or installing illegal parts on emission-
controlled vehicles operated on a public highway.
Violations of these requirements are subject to penalties up to $37,500 per
violation.
This advisory describes actions that manufacturers, wholesalers, distributors,
dealers, installers, retailers, repair shops, and consumers may take to help
minimize the potential for non-compliance. CARB considers these actions when
exercising enforcement discretion in determining an appropriate penalty.
1
Generally these are vehicles model-year 1966 and newer, motorcycles model-year 1978 and
newer registered or identified by the Department of Motor Vehicles, and off-highway
recreational vehicles model-year 1997 and newer with emission standards and/or emission
controls.
2
Highways are defined in Vehicle Code § 360.
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Performance aftermarket parts such as exhaust headers, software tuners, air intakes,
superchargers, and turbochargers typically increase vehicle performance. These parts
and others typically require an exemption from the regulatory requirements (known as
a CARB Executive Order (EO)
3
)to be legally advertised, offered for sale, sold, installed,
and/or used in California. However, if it is installed and used on a racing vehicle
4
, a
performance aftermarket part may be advertised, offered for sale, sold, installed,
and/or used in California without an EO.
California laws and regulations prohibiting advertising, offering for sale, selling,
installing, and/or using performance aftermarket parts on emission-controlled vehicles
are generally referred to as California’s anti-tampering” laws. In addition to
explaining the legal requirements for the sale and use of performance aftermarket
parts in California for consumers and industry participants, this advisory also describes
actions industry participants can take to strengthen compliance, which, when
documented, CARB will consider when deciding how to enforce California’s anti-
tampering laws.
CARB’s mobile source certification programs are the fundamental component of
California’s motor vehicle emissions control program. All on- and off-road emissions-
controlled vehicles or engines must be in a legally-certified configuration for operation
on any California public highway. CARB certifies emissions control systems for on- and
off-road vehicles and engines, and offers a pathway for approval of the sale and use
aftermarket parts that do not adversely impact emissions control systems or emissions
standards (Health & Safety Code §§ 43013, 43018, 43101, 43102, 43104, 43105, and
43107.) Aftermarket parts manufacturers that can demonstrate that its parts do not
adversely impact engine emissions control systems are issued a CARB EO that allows
the part to be legally advertised, offered for sale, installed, and/or sold for on-road or
off-road use in California.
Under California law, a public highway includes any public street or roadway, public
dirt road, public park, or publicly-maintained right of way that is open to the use of the
public for vehicular travel (Vehicle Code § 360), and a vehicle is any device that can be
propelled or moved upon a public highwaythis includes any car, truck, on- and off-
highway motorcycles, and other on- and off-road recreational vehicles (Health & Safety
Code § 39059; Vehicle Code § 670).
3
If the part or modification is shown to not increase vehicle emissions, it is granted an
exemption from emission control system anti-tampering laws. This exemption is called an
Executive Order (EO). While the two terms “exemption” and “EO” may be used
interchangeably, this advisory will use the term CARB EO throughout.
4
As defined in Health & Safety Code § 39048.
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Manufacturers, Wholesalers, Distributors, Dealers, Retailers, Installers, and Repair
Shops
CARB anti-tampering requirements are in place to protect the emissions reductions
achieved by CARB’s certification program and ensure compliance with the federal
Clean Air Act. Manufacturers, wholesalers, distributors, dealers, retailers, installers,
and repair shops or facilities are in violation of California law if they offer for sale, sell,
and/or install performance aftermarket parts without an applicable CARB EO on an
emission-controlled vehicle for operation on a public highway as defined by California
law. Such violations can occur regardless of any real or claimed intent regarding
how the part will be usedsuch as the part will only be used on racing or
competition vehicles.
In California, manufacturers, wholesalers, distributors, dealers, retailers, installers,
and/or repair shops or facilities may build uncertified vehicles and manufacture, sell,
and install performance aftermarket parts not covered by a CARB EO if those vehicles
are racing vehicles and those parts are used on racing vehicles. The racing vehicle
exemption in California law exempts racing vehicles from vehicle emissions control
requirements (Health & Safety Code § 43001) and defines a racing vehicle as a
competition vehicle not used on a public highway (Health & Safety Code § 39048).
For any person engaged in the business of retail sale or installation of add-on or
modified part(s) which do not have a CARB EO, CARB regulations (California Code
Regulations, title 13 § 2222(f)) require the person to keep records of such activity,
including the date of sale or purchase, the purchaser name and address, vehicle
model, and work performed, if applicable. Records must be available for CARB
inspection and kept for four years from the date of sale or installation.
Any manufacturer, wholesaler, distributer, dealer, installer, retailer, and/or repair
shop or facility is potentially liable if they offered for sale or sold an uncertified
vehicle, illegally modified a vehicle, or offered for sale, sold, or installed a
performance aftermarket part without an applicable CARB EO on a vehicle
operating on a public highway. Violations, including failure to keep records as
required, are now subject to increased penalties up to $37,500 per violation
(Health & Safety Code §§ 43016 and 43154).
The magnitude of penalties and liability for violations generates a substantial risk for
manufacturers, wholesalers, distributors, dealers, retailers, installers, and repair shops
or facilities participating in the racing vehicle and performance aftermarket parts
market in California. In enforcing California law, CARB encourages manufacturers,
wholesalers, distributors, dealers, retailers, installers, and repair shops or facilities to
minimize their risk of an enforcement action for non-compliance. CARB will be
focusing enforcement on, and reserving the highest penalties for, cases where the
responsible party was complicit or took little or no action to prevent potential
violations. Where there is a violation, CARB measures the severity of the violation by
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considering all relevant facts and circumstances of each case, including eight statutory
factors required by law (Health & Safety Code § 43024). CARB settles cases using its
adopted Enforcement Policy, which lists additional factors CARB considers.
Consumers
Consumers can avoid violations by purchasing, installing, and/or using performance
products that have a CARB EO for their own specific vehicle model.
Operating an uncertified, tampered, or illegally-modified vehicle on a public highway
is a violation of California law and subject to a failure at Smog Check, loss of
Department of Motor Vehicles (DMV) registration, proof of correction, and fines. An
emission-controlled vehicle which has been modified with a performance aftermarket
part that does not have a CARB EO is tampered under the law (Vehicle Code §§
27156 and 38391) and therefore is illegal to register or identify with DMV or operate
on a public highway in California.
CARB conducts enforcement actions against individual vehicle owners that have
violated the law by tampering, modifying, or installing illegal parts on emission-
controlled vehicles operated on a public highway. Any person that illegally
modifies or operates an uncertified or tampered vehicle on a public highway as
defined by California law is subject to a DMV registration stop and a penalty of up
to $37,500 per violation (Health & Safety Code §§ 43016 and 43154).
Examples of Industry Practices That Strengthen Compliance
Manufacturers, wholesalers, distributors, dealers, installers, retailers, and/or repair
shops or facilities that advertise, offer for sale, or sell uncertified vehicles or advertise,
offer for sale, sell, or install performance aftermarket parts without CARB EOs must
show the vehicle is not an emission-controlled vehicle, or is a racing vehicle or that
their products are used on a racing vehicle. Taking the actions below will not absolve
manufacturers, wholesalers, distributors, dealers, installers, retailers, and/or repair
shops or facilities from liability under California law. However, some companies have
found the following practices help minimize the possibility of unintentionally violating
the laws. Moreover, in any potential enforcement action, CARB considers the actions
a company proactively took to minimize non-compliance. The actions described
below can include a range of information showing that the vehicle for which a part or
component is manufactured, sold, or installed is in fact used solely for racing
purposes. No particular information or documentation is in and of itself conclusive.
CARB considers the totality of the circumstances when exercising enforcement
discretion. Factors to be considered include whether a responsible party:
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Has, or is pursuing CARB EOs for covered products.
Installs, sells, advertises, and/or services only emissions legal parts (replacement
parts and/or parts with CARB EOs) for vehicles with license plates and/or DMV
identification/registration.
5
Verifies there is no license plate and/or registration prior to installing
performance aftermarket parts or performing modifications without a CARB
EO.
Refuses to perform emissions-related repairs on licensed and/or registered
vehicles (other than a return to original equipment manufacturer (OEM) certified
configuration) that are missing or have tampered emission control systems such
as catalysts, exhaust manifolds, turbochargers, exhaust gas recirculation (EGR),
diesel particulate filters (DPFs), selective catalytic reduction (SCR), or obvious
software tampering.
Refuses to illegally modify any emissions-related parts on a certified vehicle, or
install performance aftermarket parts without a CARB EO on a vehicle with a
license plate and/or registration. A true racing vehicle should be trailered to
any events or to any repair facility as they are illegal to operate on a public
highway.
Notifies the vehicle owner that their vehicle is tampered and not legal for use
on public highways.
Educates and advises consumers against illegal modifications and the potential
consequences.
Labels products without CARB EOs to clearly notify consumers in writing that
these products are illegal to operate on any public highway and explains that
this means any public paved or unpaved roadway or in a public park and these
products are only legal if used on a racing vehicle. Also, explains that violations
are subject to a maximum penalty of $37,500 per violation per vehicle,
revocation of registration by DMV, loss of use on California public right of ways,
and proof of correction of the tampering.
Confirms that the consumer has a legitimate reason for purchasing a product
without a CARB EO by verifying and keeping documentation including the
make, model, and vehicle identification number (VIN). Verifies that the part(s)
5
All references to DMV registration in this advisory refer to DMV registration that authorizes a
vehicle to operate on or off a public highway.
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sold are appropriate for the identified racing vehicle, and that the racing vehicle
is not licensed and/or registered with the DMV. Obtains information about the
consumer including name, address, driver’s license number, and any
documentation and affiliation with a racing organization, club, sanctioning
body, track, racing rulebook, etc., and a signed affirmation/affidavit that the
product is for racing only.
Isolates and controls the sale of products without a CARB EO by documenting
all sales information including, but not limited to, the make, model, year, VIN,
and any pertinent vehicle information, along with a detailed invoice of any work
performed.
Keeps track of sales and/or installation of products without a CARB EO as sales
and production numbers should be representative of the low numbers of true
racing applications.
Only markets and advertises products with CARB EOs and only sells and/or
installs products with CARB EOs.
Has a robust training program for all sales, marketing, and shipping staff on the
anti-tampering prohibitions, how to determine whether a part has an EO, the
recordkeeping requirements, penalties for violations, and proactive measures to
prevent illegal sales.
Has a robust audit program, and/or corporate compliance program, including
elements such as quality assurance/quality control methodologies, regularly
scheduled inspections/audits, recordkeeping requirements, reporting
requirements, disclosure requirements, a Whistleblower program, etc.
Any manufacturer, wholesaler, distributer, dealer, installer, retailer, and/or repair
shop or facility is potentially liable if they offered for sale or sold an uncertified
vehicle, illegally modified a vehicle, or offered for sale, sold, or installed a
performance aftermarket part without an applicable CARB EO on a vehicle
operating on a public highway. Violations, including failure to keep records as
required, are now subject to increased penalties up to $37,500 per violation
(Health & Safety Code §§ 43016 and 43154).
In conclusion, for information regarding this advisory or to provide information about
possible tampering, please contact Tampering@arb.ca.gov.
This advisory only explains the statutes and regulations and does not alter, amend, or modify the
laws in any way. It does not provide any options for alternative relief or safe harbor from potential
violations. In the event of any conflicting interpretation, the statutes and regulations control.